Mini Lesson Descriptions by MARGINS Initiative

Already testing? Directions for testing should provide the information needed for using the mini-lessons in your classroom. If you have any questions about the process, please e-mail Juli Morgan (morganj@rice.edu).

Note: this index only includes lessons being tested, authors can access the full list in the Mini Lesson Browse

Rupturing Continental Lithosphere Lessons

Explore the geologic and geophysical processes that control continental rifting and its progression to lithospheric rupture. Findings from the Gulf of California-Salton Trough region address boundary conditions (pre-existing weaknesses, upper mantle structure, relative plate motion) and define factors that control rifting in this setting, including magmatism, rift obliquity, and sedimentation. Exercises on comparative bathymetry and styles of extension provide useful background material for the mini-lessons.

Bathymetry of Rifted Margin An examination of two contrasting rifted margins: the Red Sea and Gulf of California, leading to identification of similarities and differences associated with rifting and lithospheric rupture in each setting.

Oblique Spreading and Rift Morphology: A module that uses Euler poles to describe the relative motion between the Baja Microplate and North American Plate, highlighting how the obliquity of rifting changes along strike in the Gulf of California.

Seismogenic Zone Experiment Lessons

Comparative subduction zone tectonics and fault slip processes are examined through case studies from around the world, using existing data sets to document the evolution of convergent margins through time, and the range of fault processes that can occur in these settings.

Accretionary vs. Erosive Subduction Margins: This module examines the nature and variability of subduction margins through examination of data sets that document subduction zone inputs, deformation, and resulting morphology in different settings.

The Spectrum of Fault Slip: Introduction to the different types of slip behaviors that can occur on subduction thrust, and comparative analysis of data sets derived from earthquakes and slow slip events to learn to discriminate among events.

Sediments and Carbon Burial on the Continental Margins: This lesson explores factors that control the character and fate of carbon delivered by rivers from the continents to the oceans, using mapped characteristics and data from 12 different rivers, including the MARGINS Waipaoa and Fly systems.

Subduction Factory Lessons

Hands-on examinations of data sets representing different parts of the subduction zone system, and the processes that operate within them, from metamorphism and melting, through volcanism and erupted deposits.

Subduction Zone Metamorphism: This module introduces students to subduction zone metamorphism through the examination of rock samples, calculating P-T-t paths, and comparing them to thermal model predictions of P-T paths.

Already testing? Directions for testing should provide the information needed for using the mini-lessons in your classroom. If you have any questions about the process, please e-mail Juli Morgan (morganj@rice.edu).

Note: this index only includes lessons being tested, authors can access the full list in the Mini Lesson Browse

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NASA Earth Observatory

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Maril Miller

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Provenance

NASA Earth Observatory

Reuse

This item is offered under a Creative Commons Attribution-NonCommercial-ShareAlike license http://creativecommons.org/licenses/by-nc-sa/3.0/ You may reuse this item for non-commercial purposes as long as you provide attribution and offer any derivative works under a similar license.

Provenance

NOAA Ocean Explorer/ G. Fruh-Green

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This item is offered under a Creative Commons Attribution-NonCommercial-ShareAlike license http://creativecommons.org/licenses/by-nc-sa/3.0/ You may reuse this item for non-commercial purposes as long as you provide attribution and offer any derivative works under a similar license.